Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d5be03bc160dfb9…

MALICIOUS

PDF

73.4 KB Created: 2021-02-19 07:29:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 73e4db559e4cbe0ecffa0bbaa5cd5095 SHA-1: 5b96148014dd8f882d1f110ab2c5f9db256cdacb SHA-256: 8d5be03bc160dfb99c6ac09f54b8832f22e67f6c4d767401775e22ff72527658
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://jacksth.ru/strik?utm_term=25+hp+johnson+boat+motor+for+sale PDF link annotation
    • https://cdn.sqhk.co/toxinize/iiibRgg/38874105917.pdfIn PDF document text
    • http://instacopyrightcenter.com/eversource_power_outage_report_mazfsa8.pdfIn PDF document text
    • https://cdn.sqhk.co/kejaxedusuk/Txjcesl/bike_xtreme_hack_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/pegiridireva/cgdMyEB/axis_football_league_2020_unblocked.pdfIn PDF document text
    • https://cdn.sqhk.co/zofagopipowi/RRiejc4/94110135741.pdfIn PDF document text
    • http://firstreadersclub.com/tuzidufoe8lng.pdfIn PDF document text
    • https://cdn.sqhk.co/ropimipaf/NnjahiT/daxurepujiworanazi.pdfIn PDF document text
    • https://cdn.sqhk.co/lonubugogere/gdixjc0/how_to_draw_sharp_monster_teeth.pdfIn PDF document text
    • https://cdn.sqhk.co/xixujipum/egghePg/1531290987.pdfIn PDF document text
    • http://copyrightnotices-form.com/xaxovugapapevenezawotekfmuah.pdfIn PDF document text
    • https://cdn.sqhk.co/levowexesu/3G1ieia/football_training_equipment_for_wide_receivers.pdfIn PDF document text
    • https://cdn.sqhk.co/bezorufuv/614bC1z/20257339579.pdfIn PDF document text
    • https://cdn.sqhk.co/suzironanes/UfgchgZ/rilagajegam.pdfIn PDF document text
    • https://cdn.sqhk.co/zidexamuwela/ZL2jfcJ/14029230520.pdfIn PDF document text
    • https://cdn.sqhk.co/madagijoj/kWicdhb/subaru_starlink_coverage_map.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wisuw/agric_economic_and_extension.pdfIn PDF document text
    • https://s3.amazonaws.com/xefezesebusu/91586606236.pdfIn PDF document text
    • https://s3.amazonaws.com/mibiwivanetuj/wow_bfa_balance_druid_pve_guide.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1F4 5516 bytes
SHA-256: b0f56e780a9213a8c13a0e15b21d4fed3d2a1910b18671b09d621d0b7d351e60
font_01_sfnt_off0000f489.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF489 10536 bytes
SHA-256: 9920636e69367c49bc036c294443f096345bbe91255c9ad696bd5788cf016614

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